William e



(Modem W. R. BARTON. Y Shank Laster for Boots and Shoes.

No. 239,214. Patented March 22,1881.

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' MPETHS, PHDTO-LITHOGRAPNER"WASHINGTON. I; C

UNITED STATES PATENT OFFICE.

WILLIAM R. BARTON, on BRIDGEWATER, MAss, AssIeNOR on ONE-HALF To GEORGE o. HAMMOND, OF CENTRAL FALLS, R. I.'

SHANK-LA STER FOR BOOTS AND SHOES.

SPECIFICATION forming part of Letters Patent No. 239,214, dated March 22, 1881.

Application filed February 4, 1881. (Model) To all whom it may concern:

Be it known that I, WILLIAM R. BARTON, a citizen of the United States, residing at Bridgewater, in the county of Plymouth and State of l\lassachusetts,have invented new and useful Improvements in Shank-Lasters for Boots and Shoes, of which the following is a specification.

This invention relates to a tool for drawing in the uppers of boots and shoes to the shank of the last, its objects being to secure a permanent extended rest or abutment for the base of the tool upon the side of the upper while its claw or part which engages the other side of the upper is drawing the leather into the last-shank, and to avoid bruising the surface of the leather; and it has the further object to render a shank-laster of this class capable of use in lasting boots and shoes of different sizes.

In the accompanying drawings, Figure 1 is a perspective view of myimproved shank-laster, and Fig. 2 is a side elevation of the same as applied in lasting, the last and upper being shown in section.

v The letterA indicates a lever having secured on opposite sides of one end the earpieees B B,between which a claw, G, is pivoted, said claw being preferably formed of platesteel, and having its free end provided with teeth at d d, the center tooth being set back on a line to the rear of the others, so that in drawing the upper in upon the curve of the shank of the last the said upper will be snugly laid and the teeth will pull equally. A greater number of teeth may, of course, be used, and in such case they should be arranged in a curved row, with those near the middle set to the rear of the end teeth. From the under side of the end of the lever project two lugs, e 6, between which one end of a rigid link, E, is pivoted, the other end of said link being pivoted between ears f f projecting from the back of a base -plate, F, the face of which is curved to fit transversely upon the surface of a last-shank. The lugs e e are connected to a screw-rod, G, and the lever A is provided with a series of holes, h, at different distances from its end, through either of which holes the screwrods may be passed and secured. by a nut, g, thus rendering the tool adjustable for use in I lasting boots and shoes of various sizes.

In using the tool the curved face of the baseplate is to be placed against one portion of the shank of the upper of a boot or shoe when on the last, thelever being then turned on the pivot at the upper end of the link E, and said link turning on the pivot at its lower end, so that the claw may be extended across the shank of the last and engaged with the other part of the shank of the upper,'as shown in Fig. 2. The outer end of thelever being then pressed downward, the shank portion of the upper with which the claw is engaged will be drawn snugly to the last or insole upon the last, the lever A and link E turning upon their pivots as the lever is depressed and the baseplate remaining permanently in position during the operation, which is due to its pivotal connection with the outer end of the link, and by not sliding obviating bruising of the upper.

The side of the upper shank being properly tacked down, the tool is to be changed to the opposite side of the last and the other side of the upper shank lasted in a similar manner.

What I claim is- 1. The combination, with the lever having a claw, of a link having a pivotal connection with the lever, anda base-plate pivoted to the outer end of the link and having a curved fiace arranged to rest In a fixed position against the leather without rocking or moving when the lever is operated, substantially as and for the purpose described.

2. The combination, with the lever and flexibly-connected base-plate, of the claw having 8 the teeth arranged in a curved line at its end, substantially as and for the purpose set forth.

3. The combination, with the lever A, provided with vertical apertures, of the screw-rod G, adapted to said apertures, and having at 0 its lower end the lugs e e, the link E, pivoted between said lugs, and the base-plate F, pivoted to the outer end of the link, all substantially as and for the purpose described.

In testimony whereof I have hereunto set 5 my hand in the presence of two subscribing witnesses.

WILLIAM RANDAL BARTON.

Witnesses:

WILLIAM E. BARTON, RICHMOND A. BARTON. 

